What was it!???

Ok so this is a bit TMI so I apologise...

I’m a few days into my period now and when I went to the toilet this morning I noticed what I can only describe as a clear jelly like blob/clot in the bowl with some blood on it?! I’ve never noticed anything like this before. As I was in a rush to get to work I thought noting more of it at the time but its been bothering me all day and there’s been no more since? Does anybody have any idea what it could have been/is it normal?

Other than last Thursday and Friday I’ve had no real pain, last week was just the pain you get at the beginning of your period anyway.